Adhesive wafer



c. J. DEXTER. ADHESlVE-WAFER. APPLICATION FILED NOV. 24, i920- 35410555,Patented Mar. 28, 1922..

CAB/L J. DEXTER, 0F LAFAYETTE, INDIANA.

ADHESEVE WAFER.

Specification of Letters Patent.

Patented Mar. 28, i922.

Application led November 24, 1920. Serial No. 426,236.

To all whom t may concern:

Be it known that l, Canti d. a citizen of the United States, residing atLafayette,l in the county of Tippecanoe and State of lndiana, haveinvented certain new and useful .lmprovements in Adhesive lll-eters, oitwhich the following is a specilic-ation.

This invention relates to adhesive `waters and more especially to anadhesive water which is intended to be employed in the mounting ofphotographic prints either upon card mounts or upon the leaves ot analbum, although the water is not restricted to this use.

Ordinarily in mounting photographic prints, adhesive is applied to thebackof the print either over the entire surface there of or a portionor" the surface, and even where the work is performed in a skillfulmanner there is liable to be a subsequent curling or warping o the printand the card or sheet upon which it mounted. Also, where photographicprints are mounted in an album, it is desirable at times to remove oneor more ot' the prints but where they are mounted in the usual manner itis praetically impossible to accomplish this without either niarring theprint or mutilating the leat' upon which it is mounted because ot' thedirect union of the surfaces of the print and mount. At the saine timeit is ocsirable that a photographic print be so mounted that itv willret-ain a Hat position upon the surface ot its mount. ln considerationot the foregoing it is one or the objects ot. the present invention toprovide an adhesive wafer which may be conveniently employed in mountingphotographic prints or the like and which will serve to retain themounted print in a tlat condition and will vet not so immovably securethe `print as to result in curling or warping of the print or its mount.

Another object ot the invention is to provide an adhesive wafler for thepurpose stated which, while it is adapted to securely mount a print orthe like, will nevertheless be so constructed as to permit of the printor the like being readily removed from its mount whenever requiredwithout the necessity of mutilating either the print or the mounttherefor.

A further object of the invention is to provide an adhesive wafer whichmay be manufactured at an exceptionally low cost its corners turned backto illustrate tire manner in which the water is arranged prior to thesecuring oi? this corner,

` Figure 2 is a view similar to Figure l but illustrating the manner inwhich the print may be removed from the mount without mutilation 5Figure 3 is a plan view of the blank from which the water is formed;

Figure l is a detail sectional view taken along a diagonal line throughthe print and its inount and illustiating` the manner in which the waferis designed to secure the parts together.

ln the drawings the numeral l indicates a photographic print which is tobe applied to the surface o'l' a mount 2 which may be inthe nature ot acard or which may be the lea;la ot a photographic album.

The water embodying the invention is indicated in general by the.numeral 3 and the said wafer, as illustrated in Figure 3 of thedrawings, is to be formed from a rectangular blank of material such forexample as paper which blank is preferably of a length equal tosubstantially twice its width. This blank is provided upon one of itsfaces with an adhesive coating 4 which extends over the entire area ofthe face, and after the blank has been prepared, it is to be foldedalong the dotted lines 5 in Figure 3 so as to produce the completedwater. l't will be observed by reference to the said figure that thelines 5 extend from opposite corners of the blank to a point midwaybetween the ends of one longitudinal edge of the blank7 and because ofthe relative proportions of the width and length of the blank, thesefold lines. extend at an angle of forty tive degrees to eitherlongitudinal edge of the blank. While adhesive is applied, as abovestated, to one face only of the blank, it will be evident lthat when theblank is folded along the dotted lines 5, the wafer thus produced willhave a triangular form and both the faces thereof will present anadhesive surface.V

After the blank has been formed by folding it along the dotted lines 5so that it assumes the right angle triangular form shown in Figure l ofthe dra-wings, it is to be moistened upon one side and applied either tothe under surface of the print or the upper surface of the mount towhich the print is to be secured. In the former instance the closededges of the mount will be brought into registration with the Inargindefining the selected Vcorner of the print, the open side of the w ferbeing presented obliquely inwardly. rlhen upon moistening the other`side of the wafer, the print may be laid upon the mount and securedthereto. inasmuch as the contiguous faces of the folded corners and theintermediate portion of the wafer blank are not secured together, thewafer may be extended slightly in the manner of a bellows, andconsequently a print which is secured by its four corners through theemployment of the wafers, may expand and contract as may also its mount,without producing a warping or other distortion of either the print ormount.V Fun thermore while a print may be secured by its four corners toits mounting surface through the employment of the wafers abovedescribed, the print may be readily removed from its mount wheneverrequired by insertinor a knife blade within the pocket of each wafer andslitting each wafer along its diagonal fold lines, as clearlyillustrated in Figure 2 of the drawings, the folded corners of the waferblank being left attached tov one of the previously connected membersand the intermediate portion of said blank being left attached to theother member.

From the foregoing it will be evident that y by employment of theadhesive wafer eming the print to be mounted firmly in place with onehand upon the face of the mount and then moistening both sides of thewafers and positioning them beneath the corners of the print andsubsequently pressing the corners down flat, and itis probable that thismode of application will be found most desirable and convenient.

Having thus describedV the invention, what is claimed as new is:

l. An adhesive wafer comprising a rectangular blank of ma length'substantially equal to twice its width, said blank being folded alongdiagonal lines extending from the corners at one longitudinal edge to apoint bisecting the opposite longitudinal edge thereby providing doublelayers, the exposed faces having an adhesive coating for pasting twofibrous sheets together, said sheets being separablein intact conditionby cutting the wafer along said diagonal lines between said layers.

2. A blank for an adhesive wafer, comprising a rectangular sheet havingone entire side covered with an adhesive coating, two adjacent cornersbeing folded together with the uncoated side inward, so as to form a twolayered, right angle triangle with both exposed faces coated for pastingtwo fibrous sheets together, said fibrous sheets being separable inintact condition by cutting the folded edges of the wafer.

ln testimony whereof l ailix my signature.

ARL J. DEXTER. [n s]

